Sealing device



June 18, 1935. F. E. MCCABE 2,004,997

SEALING DEVICE Filed July 15, 1932 Patented June 18, 1935 UNITED STATES.

SEALING DEVICE 1 Frank E. McCabe, Shaker Heights, Ohio, assignor to The Grabler Manufacturing Company,

Cleveland, Ohio, a corporation of Ohio Application July 13, 1932, SerialNo. 622,264

4. Claims.

1 This invention relates to sealing devices and particularly to sealing devices for steel barrels or. drums.

In such barrels or drums the bung opening is provided in the wall of the metal and is reinforced by suitable means. A ring providing a threaded surface is normally associated with the bung opening and the bung is correspondingly threaded. With certain constructions it is difficult to maintain liquid-tight adjustment, and sealing the bung to the drum is also a matter of considerable difficulty.

One of the objects of the invention is to provide a barrel closure and sealing device whereby these difficulties may beobviatedin a simple, inexpensive and effective manner.

A further object of the invention is toprovide an improved closure-and sealing device.

A further object of the invention is to provide a drum wall provided with a bung opening, a bung, and a gasket adapted to cooperate effectively to provide liquid-tightclosure and effective sealing.

Other objects, advantages and capabilities of the invention will appear from the following description of preferred embodiments thereof, taken in conjunction with the accompanying drawing, in which Figure l is a plan view of a portion of a barrel wall containing a bung opening;

Fig. 2 is a sectional View therethrough taken on the line 2-2 of Fig. 1;

Fig. 3 is a plan view of a bung applied to a bung opening in closing andsealed relation;

Fig. l is a sectional view taken on the line 4-4 of Fig. 3; and

Fig. 5 is a plan view of the gasket shown in Figs. 3 and 4.

In the drawing I have illustrated the invention in connection with the bung hole structure described and claimed in United States Patent No. 1,513,516, issued October 28, 1924. While the invention is capable'of being employed with this structure, it is not intended to be limited thereto, since it is obvious that it may be applied to other forms of bung ring structure.

Referring to the drawing, the wall of the barrel is designated by the reference numeral ID. This wall is provided with a bung opening which is designated H. The edge of the bung opening is spun inwardly slightly and carries a plurality of fingers 12, four being shown, located at equidistant points at the opening ll. Around the opening H the wall I is provided with an annular boss I3. Along the outer edge of the boss i 3 and at desired positions on its circumference, 'upw-ardprojections:54 are formed which are preferably'located in radial alignment with the fingers i2. Theinner portion of'the boss E3 is left flat so as to insure effective engagement with the gasket in the manner hereinafter described- Intermediate adjacent projections 14,

and beyond the boss iii, the barrel WallfilflfiiS provided with depressions or recesses I fora purpose hereinafter described. It; will-"readily be understood that the bung opening andthe associated features hereinbefore described may readily be formed in the metal of the wall ID .by simple stamping and pressing operations. The boss it provides a seat for the bung ring 16 which is located on the inner side of the wall iii. The bung ring l 5 comprises two offset flanges i1 and Iii. The upper flange ll is located with-,. inthe boss {13; The lower flange l8\projects' inwardly with respect tothe flange ll and'is internally threaded. The flange it is provided with vertical slots is which are adapted to re- I the bung is being applied to, or removed from the I drum.

The bung 28 comprises a cylindrical portion 21 which is exteriorly threaded so as to engage the threaded surface of the bung ring l6. It also comprises a circular flange 22 which is adapted to overlie the inner portion of the boss l3; Suitable .means may be provided whereby the bung may be engaged by a suitable wrench for application or removal. Such means may, for example, be a head 23 having a hexagonal contour and a rectangular recess 24;

In the embodiment of the invention illustrated, the gasket 25 shown in plan in Fig. 5 may suitably be employed. This gasket is provided with an opening 26 through which the cylindrical portion 2! of the bung 2%? is adapted to pass. The

gasket 25 may suitably be out from square maof the gasket 25 and threaded into the bung ring IS. The engagement of the projections l4 with the ends of the slots 21 prevents the gasket from rotating. Bung 20 is tightened so as to press the gasket and effectively close the bung opening in a liquid-proof manner. In order to seal the closure, means are associated with the gasket 25 for preventing rotation of the bung 20 without immediate disclosure of unauthorized tampering, the gasket 25 being held immovable until the bung 20 is unscrewed to a considerable. extent. Such means may suitably comprise a wire 29 which is passed through an opening 30 in the bung 20. The wire 29 is passed through one of the openings 28 and a seal 3| of anysuitable type is applied to connect the ends of the wire together. The recess or depression I being located below the openings 28 facilitate the threading of the wire through said openings.

Although the invention has been described in connectionwith the specific details of preferred embodiments thereof, it must be understood that such details are not intended to be limitative of the invention except in so far as set forth in the accompanying claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. 'In combination, a metal barrel wall provided. with a bung opening, a bung adapted to be threaded' into said opening, a gasket adapted to be applied between the bung and the barrel wall, said threaded into said ring and provided with a flange, and a gasket adapted to be engaged between said flange and said barrel wall, said gasket having openings corresponding to said projections whereby the same is held against rotation, said bung and said gasket being adapted to be secured together to prevent surreptitious removal of the bung.

3. In combination, a barrel wall provided with an opening and having inwardly extending fingers around the circumference of said opening, a bung ring secured adjacent said opening by said fingers, a bung extending through said opening and threaded intosaid ring, said bung having a flange extending over said wall around said opening, said wall being provided with upward projections beyond said flange, and a gasket engaged between said flange and said wall and having portions projecting outwardly between adjacent projections whereby the gasket is held against rotation, said projecting portions and said bung being provided with openings whereby the same may be secured together so as to prevent surreptitious removal of the bung.

4. In combination, a barrel wall provided with an opening and having inwardly extending fingers around the circumference of said opening, a bung ring secured adjacent said opening by'said fingers, a bung extending through said opening and threaded into said ring, said bung having a flange'extending over said wall around said opening, said wall being provided with'upward projections beyondsaid flange, and a gasket engaged between said flange and said wall and having portions projecting outwardly between adjacent projections whereby the gasket is held against rotation, said projecting portions and said bung being provided with openings whereby the same may be secured together so as to prevent surreptitious removal of the bung, the barrel wall being provided with depressions registering with the openings in said projecting portions of the gasket.

FRANK E. MCCABE. 

